With a bra on, wrap a tape measure snugly, but not too tightly, around your rib cage, just below your bust line. This is your band size (US/UK sizing uses inches).

Then, wrap the tape measure around the fullest part of your bust. If the difference is:

1" / 2.5cm your cup size is A

2" / 5cm your cup size is B

3" / 7.5cm your cup size is C

4" / 10cm your cup size is D

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About the Designer

With five generations of apparel manufacturers in their family, sisters Andrea and Michelle Varat have continued to make fashion a family affair. Experience in fabric sourcing and marketing gave them the industry expertise to launch Top Secret: an intimates line with a "show, don’t tell" motto. Inspired by the practicality and stylish appeal of South American bandeau tops, Top Secret lingerie and apparel channels a similar ease, peppered with the color and movement of the designers' native Miami culture.